Customers can reach the new items on the Shake Shack app starting Sept. 10.

The items will then become available at locations across the United States on Sept. 13.

If you’re looking for a vegetarian option, you’re in luck.

shake shack

Photo: Here Now / Shutterstock. Design: Olivia Tarantino / Eat This, Not That!

This is topped with black truffle sauce and shredded lettuce and served on a toasted potato bun.

The chain later launched its Black Truffle Menu on a nationwide scale inOct.

The Talea Black Truffle Lager is brewed with real black truffles and porcini mushrooms.

shake shack’s black truffle burger

Courtesy of Shake Shack

“We’re thrilled to bring back our fan-favorite ‘Black Truffle Menu.’

“It not only highlights our premium ingredients, but also elevates the guest experience.

shake shack’s black truffle burgers, black truffle parmesan fries, and black truffle sauce

Courtesy of Shake Shack